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Formation of SABRE active complexes 6 and 7 from the precatalyst 1. For 2A, 4A, 5A, 6A, and 7A L is 3,5-dichloropyridine and for 2B, 4B, 5B, 6B, and 7B L is 3,5-dibromopyridine. The structure of 6A determined using X-ray crystallography is shown with thermal ellipsoids at 50% probability and all nonhydride hydrogen atoms omitted for clarity (gray is carbon, blue is nitrogen, white is hydrogen, green is chlorine and orange is iridium). The structure for 6B is given in the Supporting Information.

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